SOLUTION: The sum of a number and its square is 156. What is the number?
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Question 142668: The sum of a number and its square is 156. What is the number?
Answer by bebedeeb(7) (Show Source): You can put this solution on YOUR website!
to start, let n = the number
and, let = its square
so
put this quadratic equation in to standard form
now factor it out
so n=12 or n=-13
lets see:
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